Tiny25/45 and STK500 mounting

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We just got our first few ATTiny45s in DIP. AVRStudio 4.12 says to use SCKT3400D1. But since 25/45 are ADC parts, I'd expect A1 socket to be used.

Has anyone mounted these in STK500? Which socket works? (Ignoring HV Serial for now; I'm keeping /RESET at least to start with.)

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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The ATtiny13 also uses SCKT3400D1, so it's not too surprizing (though it
also seemed initially odd to me).

Unsolicited: The ATTiny13 needs a separate jumper from RST to
PB5, a detail which threw me for a while; given its similarity to the
ATTiny45 you may want to see (in the STK500 Help file) if that needs
one too.

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Quote:

The ATTiny13 needs a separate jumper from RST to
PB5, a detail which threw me for a while;

Hmmm--it would throw me too, since I don't see that reference in the 4.12 Help.

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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(Insert sound of head-scratching.) Just to make sure I didn't imagine it --
though I never would have guessed otherwise -- I went back and checked.

STK500 User's Guide (Studio 4.12 b460): ISP programming

Quote:
When programming 8-pin devices, note the following: Pin 1 is used both as RESET and as PB5 on some devices (ATtiny11, ATtiny12, ATtiny13, ATtiny15 and ATtiny45). Pin 1 on the 8-pin sockets SCKT3400D1 and SCKT3600A1 are connected to PB5. The RESET signal used during ISP programming is therefore not connected to pin 1 on these sockets. This signal must be connected by placing a wire between RST and the PORTE header and PB5 on the PORTB header.

So it does mention the tiny45.

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Now I know why so many STK500 questions are fielded here. I'm going from section to section in the Help in 4.12 SP1 Build 462 and cannot find the paragraph you quoted.

Anyway, I'll be back if I have problems when I pop in the device. Thanks for the tip.

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Quote:
Now I know why so many STK500 questions are fielded here. I'm going from section to section in the Help in 4.12 SP1 Build 462 and cannot find the paragraph you quoted.

It is on the "ISP Programming" page, the last paragraph before the table.

One thing that I always have problems with in the setup is the one jumper that connects PB0 and PB2 to DATA0 and DATA2. You've got to be sure that pin 4 of SPROG1 is connected to pin 1 of PROG DATA, and pin 3 of SPROG1 is connected to pin 3 of PROG DATA. It always seems more natural to swap that and have the cable not twisted.

Regards,
Steve A.

The Board helps those that help themselves.

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Quote:

It is on the "ISP Programming" page, the last paragraph before the table.

I think >>that<< is the weird part--I don't >>have<< an ISP Programming page. An entry in the contents, yes. Also listings in Search hits. But whenever I click on it, I get a page titled High Voltage Programming, and the quote is nowhere to be found.

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Is it possible SP2 Build 473 is that much different than SP1 Build 462? I have SP2/B473 and it pulls up an ISP programming section in Help.

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IIRC, there really _was_ a bug in the help files with the initial release and the first few service packs of Studio 4.12. So y'all may not be going mad.

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I looked at my download area, and B460+SP1 was downloaded & installed on 18-March-2006. Ancient, eh? Sometime when I can stand the download, I'll upgrade & report back.

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.